Hi,
The problem is that your `childs` property is shared by all of your
instances, it's not specific to each instance. You have the same
problem that the OP has in this question from just a few days ago, so
see that thread for the details of why:
http://groups.google.com/group/prototype-scriptaculous/browse_thread/thread/85114620db0bdc0e
You can fix it by removing the `childs: [],` line from your
`Class.create` call and then adding:
this.childs = [];
...in your `initialize` function. That will ensure that each instance
has its own array.
(Off-topic: In English, the plural of "child" is "children", not
"childs". Although most English nouns are made plural by adding an "s"
or "es" or even "ses", quite a number of them are done differently.)
Hope this helps,
--
T.J. Crowder
Independent Software Engineer
tj / crowder software / com
www / crowder software / com
On Dec 8, 2:05 pm, Bart <[email protected]> wrote:
> Hi,
>
> I'm creating a visual tree structure in which every item can have
> multiple childs. In the following code the parent item adds one child
> to itself. But for some reason the child adds itself as a child of its
> own in an infinite loop:
>
> ----- CODE ------
> var Item = Class.create({
>
> column: null,
> text: null,
> childs: [],
> parent: null,
>
> initialize: function(column, text, parent)
> {
> this.column = column;
> this.text = text;
> this.parent = parent;
>
> },
>
> addChild: function(child)
> {
> this.childs[this.childs.length] = child;
> }
>
> });
>
> var startI = new Item(1, 'start', null);
> var vervolg1 = new Item(2, 'vervolg 1', startI);
> var vervolg2 = new Item(2, 'vervolg 2', startI);
>
> startI.addChild(vervolg1);
> startI.addChild(vervolg2);
> -----------------------------------------
>
> You can find an image of the result (in the console)
> onhttp://www.bartblok.com/problem.PNG
> Why is this an infinite reference? The code should add vervolg1 and
> vervolg2 as childs of startI, but not childs of themselves.
>
> I hope someone can help me :)
--
You received this message because you are subscribed to the Google Groups
"Prototype & script.aculo.us" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/prototype-scriptaculous?hl=en.
